/Engine/Plugins/Media/PixelStreaming/Source/PixelStreamingInput/Public/PixelStreamingInputMessage.h
Constructor taking an ID and a Structure. Calculates bytelength from the structure.
FPixelStreamingInputMessage ( uint8 InId, [TArray](API\Runtime\Core\Containers\TArray)< [EPixelStreamingMessageTypes](API\Plugins\PixelStreamingInput\EPixelStreamingMessageTypes) > InStructure )